PDS_VERSION_ID = PDS3 RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 80 RELEASE_ID = 0003 REVISION_ID = 0000 OBJECT = TEXT PUBLICATION_DATE = 2010-06-18 NOTE = "Description of the DOCUMENT directory contents for the VENUS Express SPICAV UV level 0A archive volume." END_OBJECT = TEXT END DOCUMENT Directory Contents The DOCUMENT directory contains documentation files for the VENUS Express SPICAV archive volume. The files listed below are found in this directory. DOCINFO.TXT - The file you are reading. SA_VEX_ARCH_001_vv.PDF -The SPICAV EAICD in PDF format, with vv a version number. The purpose of this file is to provide users of SPICAV data products with a description of the design of the SPICAV data set structure and of the data products. This document also describes the SPICAV data flow from the VENUS EXPRESS s/c until the insertion into the PSA for ESA. It includes information on how data were processed, formatted, labeled and uniquely identified. The document discusses general naming schemes for data volumes, data sets, data and label files. Standards used to generate the product are explained. Software that may be used to access the product is given. SA_VEX_ARCH_001_vv.ASC -The SPICAV EAICD in ASCII format SA_VEX_ARCH_001_vv.LBL - PDS detached label that describes both SA_VEX_ARCH_001_vv.PDF and SA_VEX_ARCH_001_vv.ASC files SPVFUM25.PDF - SPICAV Flight User Manual in PDF Format This document presents the Flight User Manual (FUM) for the SPICAV payload instrument on Venus Express. It defines the instrument's mission objectives, physical and functional configurations, and operations modes. It describes the specific operational rules and constraints to operate the instrument during the spacecraft non-ground lifetime. SPVFUM25.LBL - PDS detached label that describes SPFUM25.PDF SPICAV_UVDATAFILE_DESC.TXT - ASCII file describing the contents of the UV data files which are delivered in the SPICAV UV data set. The user can find all the needed information to read the UV data file. It contains:a) description of the UV data detector, b) definition and header descriptions, c) important notes related to the datas themselves (ie: CODEOP,.. ), d) indication of how to read a UV file SPICAV_UVDATAFILE_DESC.LBL - PDS detached label that describes SPICAV_UVDATAFILE_DESC.TXT. SPICAV_GEOMETRY_DESC.TXT - ASCII file describing the contents of the geometry files which are delivered in the SPICAV data set. ( N/A for the Cruise ) The user can find all the needed information to read a geometry file. It includes: a) an overview of the delivered geometry files related to UV or IR.,b) header contents , c) several geometrical definitions (i.e: LOS, VNP ..) and d) brief computation background. SPICAV_GEOMETRY_DESC.LBL - PDS detached label that describes SPICAV_GEOMETRY_DESC.TXT. ( N/A for the Cruise ) SPICAV_UVMODE_DESC.TXT- ASCII file describing the different operating modes of the UV SPICAV spectrometer. It explains the values that can be used.For instance it details the ALIGN mode, the BINNING mode and other features. SPICAV_UVMODE_DESC.LBL - PDS detached label that describes SPICAV_UVMODE_DESC.TXT DATA_QUALITY_ID_DESC.TXT - This file describes the data quality which is associated with a particular DATA_QUALITY_ID value. Each data file label includes a quality flag string in the DATA_QUALITY_ID keyword. It is an eight characters flag. This file shows the definition and description of the chosen C0 to C7 characters.(i.e:1000000) DATA_QUALITY_ID_DESC.LBL - PDS detached label that describes DATA_QUALITY_ID_DESC.TXT. VEX_SCIENCE_CASE_ID_DESC.TXT -This file describes 10 typical Venus Express modes of observations (called science cases). They are different in goals, geometry of observations, and experiments involved. (i.e: case 2: nadir observation off pericenter) VEX_SCIENCE_CASE_ID_DESC.LBL - PDS detached label that describes VEX_SCIENCE_CASE_ID_DESC.TXT VEX_RSSD_LI_009.TAB - This is a Venus Express Mission phase’s table. This file summarizes the Mission nominal phases and the extended one, in terms of orbit number and date. More information can be found in the Express Science Activity Plan, VEX-RSSD-PL-002 for the nominal mission and in VEX-RSSD-PO-005 for the extended mission. VEX_RSSD_LI_009.LBL - PDS detached label that describes VEX_RSSD_LI_009.TAB VEX_POINTING_MODE_DESC.TXT -This document describes the values for the SPACECRAFT_POINTING_MODE keyword. One can find the definition of the modes and the standard given values via this element (i.e NADIR, TRACK, EARTH ...) . VEX_POINTING_MODE_DESC.LBL - PDS detached label that describes VEX_POINTING_MODE_DESC.TXT VEX_ORIENTATION_DESC.TXT -This description file describes the convention used to describe the Venus Express spacecraft orientation, especially in nadir pointing mode. VEX_ORIENTATION_DESC.LBL - PDS detached label that describes VEX_ORIENTATION_DESC.TXT VEX_MISSION_CALENDAR.PDF - This document aims at providing information about the mission, its phases and some of the environmental conditions. It contains an overview of Venus Express mission phases. It gives the dates for the different mission phases from launch to extended mission. It presents the eclipse periods, occultations and conjunctions in the third section. It also gives the list of spacecraft incident that occurred until the writing of the document. It is a constantly updated document. VEX_MISSION_CALENDAR.LBL - PDS detached label that describes VEX_MISSION_CALENDAR.PDF VEX_ARCHIVE_CONVENTIONS.PDF - This document defines the conventions that apply to the VEX Science Data Archive. The conventions are agreements and rules in addition to the PDS Standards (AD1, AD2). VEX_ARCHIVE_CONVENTIONS.LBL - PDS detached label that describes VEX_ARCHIVE_CONVENTIONS.PDF UV_OPERATION_MODES.PNG - SPICAV UV detector operation modes (figure 2 of EAICD) UV_OPERATION_MODES.LBL - PDS detached label that describes UV_OPERATION_MODES.PNG SPICAV_POINTING_001.TXT - This document describes the geometry computation. It gives some useful definitions for computations Due to the great number of operation modes and instrument configurations, the document gives a full description for each case of observation. It explains what must be computed. Furthermore , this file contains instrument values as such as : pointing, field of views, positions , ... It summarizes the preparation of observations and gives a quick note of the computation itself. SPICAV_POINTING_001.LBL - PDS detached label that describes SPICAV_POINTING_001.TXT OBSERVATION_TYPE_DESC.TXT - This description file gives the definition for the OBSERVATION_TYPE keyword values. OBSERVATION_TYPE_DESC.LBL - PDS detached label that describes OBSERVATION_TYPE_DESC.TXT PSS_2007_SPICAV_SOIR.PDF - Paper describing SPICAV, in Planetary and Space Science. This is a rather complete description of the three spectrometers of SPICAV: instruments (SPICAV UV, SPICAV IR and SOIR spectrometers), scientific objectives, modes of operation. PSS_2007_SPICAV_SOIR.LBL - PDS detached label that describes PSS_2007_SPICAV_SOIR.PDF NATURE_2007_SPICAV_SOIR.PDF - First paper in Nature 2007, describing first results obtained with SPICAV/SOIR instrument data : "A warm layer in Venus cryosphere and high-latitude measurements of HF, HCl, H2O and HDO". NATURE_2007_SPICAV_SOIR.LBL - PDS detached label that describes NATURE_2007_SPICAV_SOIR.PDF JQSRT_2008_12C16O18O.PDF - Detailed spectroscopy of the new band of CO2 isotopologue from SOIR observations in the atmosphere of Venus. JQSRT_2008_12C16O18O.LBL - PDS detached label that describes JQSRT_2008_12C16O18O.PDF JGR_2006_SPICAM_UV.PDF - Description of SPICAM UV, almost identical to SPICAV UV: useful to understand the modes of operation, and the details of the intensified CCD detector and optics. JGR_2006_SPICAM_UV.LBL - PDS detached label that describes JGR_2006_SPICAM_UV.PDF ICARUS_2008_12C16O18O.PDF - Discovery of a new band of absorption of isotope CO16018 in the atmosphere of Venus at 2982 cm-1: First observation of 628 CO2 isotopologue band at 3.3 micron in the atmosphere of Venus by solar occultation from Venus Express. ICARUS_2008_12C16O18O.LBL - PDS detached label that describes ICARUS_2008_12C16O18O.PDF ESA_SP_VEX_SPICAV_P1.PDF - This paper contains a description of SPICAV scientific objectives, similar to the PSS paper, but put more emphasis on the technical description of the instrument. ESA_SP_VEX_SPICAV_P1.LBL - PDS detached label that describes ESA_SP_VEX_SPICAV_P1.PDF ERRATA.TXT - The aim of this file is to notify the users about small inconsistencies that might be present in the SPICAV UV/IR dataset.